Re: Memory leaking?

I'm not sure what version (perl, CGI) you're running, but I don't seem to be able to duplicate the problem in either of my two environments:

   WinXP:
perl, v5.6.1 built for MSWin32-x86-multi-thread
Binary build 631 provided by ActiveState Tool Corp. Built 17:16:22 Jan
+  2 2002
$CGI::revision = '$Id: CGI.pm,v 1.49 2001/02/04 23:08:39 lstein Exp $'
+;
$CGI::VERSION='2.752';

   Solaris 8:
perl, v5.6.0 built for sun4-solaris
$CGI::revision = '$Id: CGI.pm,v 1.19 1999/08/31 17:04:37 lstein Exp $'
+;
$CGI::VERSION='2.56';
[download]

Neither of the boxen had leaks running the following:

use strict;
use CGI;
$|++;

my $ct = 0;
while (1)
{
   $ct++;
   if (1)
   {
      my $cgi = new CGI("q=$ct");
      my $blah = $cgi->param('q');
      print " blah: $blah\n";
   }
}
[download]

On the PC I let them run for more than 256 seconds (256 MB RAM) and I monitored the Solaris version using top with no visible memory leaks. You might try running my code and see if it leaks as well, but I don't think CGI.pm is the cause.

--Jim

Comment on Re: Memory leaking? - CGI.pm Select or Download Code

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Re: Re: Memory leaking? - CGI.pm by ariels (Curate) on May 08, 2002 at 07:42 UTC
Removing the `print' command, and running on Solaris, definitely shows a memory leak (at around 0.4MB/sec) if I run with Perl 5.005. `% uname -a SunOS mir 5.8 Generic_108528-07 sun4u sparc SUNW,Ultra-2 % perl -MCGI -le 'print $CGI::VERSION' 2.46` [download] Running with Perl 5.6.1 on the same platform, I observe no memory leak. This is strange.	[reply] [d/l]
Re: Re: Memory leaking? - CGI.pm by daviddhall (Sexton) on May 08, 2002 at 08:22 UTC
I ran your code, and it definetly shows memory disappearing... BTW, here's the version info for my perl: "This is perl, version 5.005_02 built for alpha-dec_osf" I guess maybe from what the other guy posted things might be better with a newer version of perl.	[reply]
Re: Re: Re: Memory leaking? - CGI.pm by jlongino (Parson) on May 08, 2002 at 14:18 UTC
BTW, if upgrading your version of Perl is a problem (some work environments are particular about that sorta thing), you might consider just installing a newer version of CGI.pm and see if that helps first. I don't know what the ramifciations of the CGI-only upgrade would be--maybe you could start a separate thread on that. I'd be interested in reading the replies, just out of curiosity. --Jim Update: make sure the version of CGI.pm you install is compatible with 5.005_02 built for alpha-dec_osf.	[reply]